Browsing by Author "Casanellas Rius, Marta"Més informacióMés informació

Now showing items 1-20 of 76

    • 6a Jornada d'Igualtat de la UPC. III Pla. On som i On anem. 

      Casanellas Rius, Marta; Castell Ariño, Núria; Lusa García, Amaia; López Beltrán, Mireia; Ferrer Balas, Dídac (2019-02-06)
      Audiovisual
      Open Access

    • A new phylogenetic reconstruction method based on invariants 

      Casanellas Rius, Marta; Fernández Sánchez, Jesús (2005)
      Article
      Open Access
      An attempt to use phylogenetic invariants for tree reconstruction was made at the end of the 80s and the beginning of the 90s by several authors (the initial idea due to Lake [Lake, 1987] and Cavender and Felsenstein [Cavender ...

    • A new spectral method for latent variable models 

      Ruffini, Matteo; Casanellas Rius, Marta; Gavaldà Mestre, Ricard (2018-05-22)
      Article
      Open Access
      We present an algorithm for the unsupervised learning of latent variable models based on the method of moments. We give efficient estimates of the moments for two models that are well known, e.g., in text mining, the ...

    • A novel algebraic approach to time-reversible evolutionary models 

      Casanellas Rius, Marta; Homs Pons, Roser; Torres, Angélica (Society for Industrial and Applied Mathematics (SIAM), 2024-01-01)
      Article
      Open Access
      In recent years, algebraic tools have been proven useful in phylogenetic reconstruction and model selection through the study of phylogenetic invariants. However, up to now, the models studied from an algebraic viewpoint ...

    • ACM bundles on cubic surfaces 

      Casanellas Rius, Marta; Hartshorne, Robin (2011)
      Article
      Open Access
      We prove that, for every r 2, the moduli space Ms X.rI c1; c2/ of rank r stable vector bundles with Chern classes c1 D rH and c2 D 1 2 .3r2 􀀀 r/ on a nonsingular cubic surface X P3 contains a nonempty smooth open ...

    • ALGEBRA MULTILINEAL I GEOMETRIA 

      Casanellas Rius, Marta (Universitat Politècnica de Catalunya, 2011-01-13)
      Exam
      Restricted access to the UPC academic community

    • Algebraic methods in phylogenetics 

      Casanellas Rius, Marta; Rhodes, John (2018-12-19)
      Article
      Open Access
      To those outside the field, and even to some focused on empirical applications, phylogenetics may appear to have little to do with algebra. Probability and statistics are clearly important ingredients, as modeling and ...

    • Algebraic statistics in practice: applications to networks 

      Casanellas Rius, Marta; Petrovic, Sonja; Uhler, Caroline (2020-01-01)
      Article
      Open Access
      Algebraic statistics uses tools from algebra (especially from multilinear algebra, commutative algebra, and computational algebra), geometry, and combinatorics to provide insight into knotty problems in mathematical ...

    • An open set of 4×4 embeddable matrices whose principal logarithm is not a Markov generator 

      Casanellas Rius, Marta; Fernández Sánchez, Jesús; Roca Lacostena, Jordi (Taylor & Francis, 2020-12-17)
      Article
      Open Access
      A Markov matrix is embeddable if it can represent a homogeneous continuous-time Markov process. It is well known that if a Markov matrix has real and pairwise-different eigenvalues, then the embeddability can be determined ...

    • ÀLGEBRA LINEAL 

      Casanellas Rius, Marta (Universitat Politècnica de Catalunya, 2021-01-08)
      Exam
      Restricted access to the UPC academic community

    • ÀLGEBRA LINEAL 

      Casanellas Rius, Marta (Universitat Politècnica de Catalunya, 2020-11-02)
      Exam
      Restricted access to the UPC academic community

    • ÀLGEBRA LINEAL (Examen final 1r quadrimestre) 

      Amorós Torrent, Jaume; Casanellas Rius, Marta; Hernando, Carmen; Magret Planas, Maria dels Dolors; Ramírez, Rafael; Pascual, Pere; Limón Morón, Antonio; Pizarro, Jordi; Giménez, Carlos; Mancebo, Antonio; Raventós, Joan; Delgado, Juan Antonio; Frías, José Antonio (Universitat Politècnica de Catalunya, 2022-01-17)
      Exam
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    • ÀLGEBRA LINEAL (Examen parcial 1r quadrimestre) 

      Amorós Torrent, Jaume; Casanellas Rius, Marta; Hernando, Carmen; Magret Planas, Maria dels Dolors; Ramírez, Rafael; Pascual, Pere; Limón Morón, Antonio; Pizarro, Jordi; Giménez, Carlos; Mancebo, Antonio; Raventós, Joan; Delgado, Juan Antonio; Frías, José Antonio (Universitat Politècnica de Catalunya, 2021-11-05)
      Exam
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    • ÀLGEBRA LINEAL | ( Examen extraordinari ) 

      Casanellas Rius, Marta (Universitat Politècnica de Catalunya, 2019-07-03)
      Exam
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    • ÀLGEBRA LINEAL | ( Examen final ) 

      Casanellas Rius, Marta (Universitat Politècnica de Catalunya, 2019-01-10)
      Exam
      Restricted access to the UPC academic community

    • ÀLGEBRA LINEAL | ( Examen parcial ) 

      Casanellas Rius, Marta (Universitat Politècnica de Catalunya, 2018-11-09)
      Exam
      Restricted access to the UPC academic community

    • ÀLGEBRA LINEAL | EXTRAORDINARI 

      Casanellas Rius, Marta (Universitat Politècnica de Catalunya, 2020-07-10)
      Exam
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    • ÀLGEBRA LINEAL | EXTRAORDINARI 

      Casanellas Rius, Marta (Universitat Politècnica de Catalunya, 2023-06-27)
      Exam
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    • ÀLGEBRA LINEAL | Final 

      Casanellas Rius, Marta (Universitat Politècnica de Catalunya, 2020-01-20)
      Exam
      Restricted access to the UPC academic community

    • ÀLGEBRA LINEAL | Parcial 

      Casanellas Rius, Marta (Universitat Politècnica de Catalunya, 2019-10-30)
      Exam
      Restricted access to the UPC academic community